.Titel{
    display: inline-block;
    padding: 10px 20px;
    font-size: 20px;
    color: #FFFFFF;
    margin-right: -4px;
    line-height: 1;
    font-weight: 600;
    background:linear-gradient(150deg,transparent 10px,#ac3b3b 0);
}

#TitelBackTitel{
    display: inline-block;
    margin-right: -4px;
    background:linear-gradient(150deg,transparent 10px,#e2e2e2 0);
}